In a ruling issued a week ago, Ohio Attorney General Michael DeWine has issued an opinion invalidating any locally mandated minimum wages in the Buckeye State.  Ostensibly, the question arose as a result of the ongoing effort in Cleveland to establish its own minimum wage beyond the state minimum of $8.10 per hour.  That rate is indexed to inflation and was first established (at $6.85) back in 2006 when Ohio voters approved a constitutional amendment creating the indexed minimum.  In his formal opinion, DeWine cited that vote as well as the fact that the minimum wage in Ohio has been governed by the state constitution since 1912, among others, in ruling that home rule power for local communities to establish minimum wages has never been authorized by the Ohio Constitution.  Notwithstanding the AG advisory opinion, SEIU and advocates continue their effort in Cleveland.